Electrostatic wall sticker, use thereof, process for manufacturing the same, and method for storing and transporting the same

ABSTRACT

An electrostatic wall sticker, use thereof, process for manufacturing the same, and method for storing and transporting the same are disclosed. The electrostatic wall sticker comprises the sticker body comprising a using layer made of plastic film which comprises a first side and a second side, and an adhesive layer made of plastic film which comprises a first side and a second side. It can effectively replace traditional wall stickers. This invention has the advantages of securely mounting on any dry surface without the need of adhesive agents, leaving no mark upon removal and being highly environmentally friendly. Also, this electrostatic wall sticker possesses the properties of face-to-face and rolling storage of static electricity, which makes transportation convenient.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a Divisional of co-pending application Ser. No.14/453,525, filed on Aug. 6, 2014, for which priority is claimed under35 U.S.C. § 120; and this application claims priority of Application No.201410100677.2 filed in China on Mar. 18, 2014 under 35 U.S.C. § 119,the entire contents of all of which are hereby incorporated byreference.

TECHNICAL FIELD OF THE INVENTION

The instant invention relates to the field of wall sticker, and moreparticularly, to an electrostatic wall sticker, use and manufacturingmethod thereof, and storage and transportation method of the wallsticker.

BACKGROUND OF THE INVENTION

Traditional wall stickers have the following disadvantages:

1. Glue or other adhesive agents are usually used on the adhesivelayers. Although can be securely affixed, the stickers may come offeasily over a period of time due to lower durability of the adhesiveeffects. Meanwhile, the stickers can easily leave stains or residual onthe walls, which makes cleaning more difficult. Some of the adhesiveagents are also toxic, which can cause harm to the human body.

2. In order to improve, some people have invented a type ofelectrostatic stickers that applies the electrostatic principle andadheres on smooth surfaces without using glue. However, due to thelimited size of the stickers, the range of use was narrowly confined inusage such as stickers of car logos or cellphone screen protectors,which was difficult to meet the demands of the public, especially in theareas of office meeting and teaching, where there is no precedent ofinstant, convenient, and non-toxic electrostatic wall stickers forwriting purposes.

3. Through adopting the electrostatic principles in affixing onto smoothsurfaces, the existing electrostatic stickers do not require any glue oradhesive agent on their adhesive layers. Since these stickers do notleave any trace upon removal, they are mostly used in making smallstickers for annual car inspection, environmentally-friendly logos, andcell phone screen protectors. As these electrostatic stickers are smallin size, the complexity and costs of production processes are higher.

4. The electrostatic stickers can overcome the disadvantages oftraditional wall stickers. However, as all electrostatic stickersrequire a protective layer to protect the static electricity on theirsurfaces, complexity for their methods of storing and transportingincreased with mass production. In case such static stickers were notprotected by protective layers, the static electricity stored could soonbe lost, along with their adhesive function. Hence, whenever anelectrostatic sticker is produced, an additional sheet of protectivesticker would also need to be made, which would lead to wastage ofresources and raised manufacturing costs.

SUMMARY OF INVENTION

To solve the above problems, this invention provides an electrostaticwall sticker.

This invention further provides use for the electrostatic wall sticker,which is particularly suitable for use in office and teaching domains.

This invention further provides the manufacturing method for theelectrostatic wall sticker.

Further, this invention aims to provide a method of storing andtransporting for the electrostatic wall stickers. To fulfill theaforementioned purposes, the first technical solution adopted by thisinvention is as follows: an electrostatic wall sticker, which comprisesof the sticker body, the recited body of the electrostatic wall stickercomprises a using layer and an adhesive layer. The recited using layerand adhesive layer are made of plastic film. The second side of therecited using layer overlaps with the first side of the recited adhesivelayer, while the first side of the recited using layer has invisibleprinting patterns or without patterns, the second side of the recitedadhesive layer is covered with ions. The electrostatic wall sticker canbe folded into two halves, in which the second side of the adhesivelayer is inwardly arranged to overlap each other, while the first sideof the using layer is outwardly arranged. The recited adhesive layer,while maintaining its adhesiveness and can be affixed on any smoothsurfaces (e.g. fabrics, walls, glass) without glue, can be usedrepeatedly even after multiple removals. The sticker does not leave anymarks on the surface and are highly environmentally friendly. When notin use, the electrostatic wall sticker can be stored by folding intohalves. After folded into halves, the ions on the adhesive layer willnot be lost easily and can be kept for at least 1 year. Such storagemethod can save the protective layers that are traditionally used forprotecting electrostatic surfaces, thereby staying environmentallyfriendly and reducing the production cost.

Preferably, for mass production, easy packaging and storage andtransportation, the electrostatic wall stickers are curly shaped, whichcan be rolled around cardboard tubes with the second side of theadhesive layer inwardly arranged and the first side of the using layeroutwardly arranged.

Preferably, for easy write-on and wipe-off on the using layer, the firstside of the recited using surface has an easy-to-erase oil-based film.

Preferably, the plastic film is made of PET film, PVC film, YUPO film,PP film, PC film, or PE film.

Preferably, material of the recited adhesive layer has a thickness of0.02 mm-0.5 mm.

The second technical solution adopted by this invention is:

Use of an electrostatic wall sticker, with the recited electrostaticwall sticker comprises the using layer and adhesive layer. The areas ofuse for the recited electrostatic wall sticker include thebeautification of daily living, office environments, and teachingsituations.

Preferably, the main use of the use in beautifying daily livingenvironments includes using the sticker as poster stickers, decorationstickers, ornamental wall stickers, and photo papers. In both officeenvironments and teaching situations, the electrostatic wall stickermainly replaces traditional writing boards and blackboards by directlyaffixing on any flat surface or the walls for writing purposes. Thiselectrostatic wall sticker can also be used as photo papers. Thepreferred patterns can be printed through printers or as photo papersfor Polaroid cameras. Photos printed through Polaroid cameras can beaffixed on walls or glass as desired.

Preferably, when the recited electrostatic wall stickers are used inoffice or teaching situations, the writing marks on these stickers canbe removed directly and made the stickers ready for repeated use.

The third technical solution adopted by this invention is:

The process for manufacturing the electrostatic wall sticker, theelectrostatic wall sticker comprising a using layer and an adhesivelayer, wherein the process comprises the following steps:

a. selecting raw materials for manufacturing the using layer andadhesive layer of the electrostatic wall sticker, which material isselected form the group consisting of PET film, PVC film, YUPO film, PPfilm, PC films or PE film;

b. cutting the material selected in Step a into required specificationsby a cutting machine;

c. compositing the raw materials cut by Step b with a compositinginstallation;

d. injecting static electricity onto the voltage onto the reverse sideof the plastic sheet in Step c to create an adhesive layer that carriesstatic electricity by using a DC/direct current corona type iongenerator, and

e. using a paper-reeling machine to roll up the electrostatic wallsticker in order to enable packaging.

Preferably, the voltage of the ion generator in Step d is set at3000-3500 volts.

Preferably, when the electrostatic wall stickers pass through thepaper-reeling machine in Step c, the second side of the adhesive layeris inwardly arranged to overlap each other, while the first side of theusing layer is outwardly arranged. And more preferably, the second sideof the adhesive layer is inwardly arranged to overlap each other, whilethe first side of the using layer is outwardly arranged when theelectrostatic wall sticker goes through the paper-reeling machine.

The fourth technical solution adopted by this invention is:

A transportation method of the electrostatic wall sticker according tothis invention, in which the electrostatic wall sticker comprises ausing layer and an adhesive layer made of plastic film, wherein themethod comprises storing and transporting the electrostatic wall stickerin rolls on a cardboard tube by using a paper-reeling machine, with theadhesive layer being inwardly arranged while the using layer beingoutwardly arranged.

Preferably, the method further comprises face-to-face storing andtransporting, in which the electrostatic wall stickers are folded intohalves, the second side of the adhesive layer is inwardly arranged tooverlap each other, while the first side of the using layer is outwardlyarranged, or the second side of the adhesive layer of two sheets of theelectrostatic wall stickers are overlapped each other. By using thisstorage method, the ions on the using layer will not be lost easily andcan be kept for at least 1 year.

The present invention may bring about many beneficial effects in thisfield, for example:

1. The electrostatic wall sticker of the invention can be able toeffectively replace traditional wall stickers by giving strong adhesiveresults on any dry surface without the use of adhesive agents, leavingno marks on the surface after removal, which can maintain thecleanliness while beautifying the environment;

2. The electrostatic wall sticker of the invention can be able to beprinted or written on, which enhances its functionality;

3. Manufacturing of additional protective sticker is not required duringthe production of this product, which reduces the production costs;

4. This electrostatic wall sticker possessing the properties offace-to-face and rolling storage of static electricity, which makestransportation convenient. When not in use, the stickers can be removedfrom the surface and folded into halves for face-to-face adhesion duringstorage. By simply unfolding the sticker, the saved static electricitycan adhere to the surfaces and support instant use in the future, whileprolonging the usage life to the greatest extent possible, the stickersare also easy to store.

5. This electrostatic wall sticker can be widely used in many domains.Apart from the commonly used car logo stickers and cellphone screenprotectors, it can also be used for beautifying daily living, such asposters and ornamental purposes. Likewise, they may also be used inoffices or classrooms to replace traditional writing boards andclassroom blackboards. Users may write directly on the electrostaticwall stickers and erase afterwards.

BRIEF DESCRIPTIONS OF THE DRAWINGS

FIG. 1 is the side sectional view of this invention;

FIG. 2 is the sketch map of the roll-up storing and transporting methodsfor this invention;

FIG. 3 is the sketch map of the face-to-face storing method for thisinvention; and

FIG. 4 is the side sectional view of the using layer with oil-based filmin this invention; in which, reference signs are:

1. Using layer; 2. Adhesive layer; 3. Cardboard tube; 4. Oil-based film.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1-3, this invention relates to an electrostatic wallstickers, process of manufacturing the same, and method of storing thestatic electricity. Detailed description of the invention are set forthin the following in order to enable the skilled in the art to carry outthis invention.

Example One

An electrostatic wall sticker is comprised of a sticker body. The bodyof the electrostatic wall sticker comprises a using layer and anadhesive layer. The using layer and adhesive layer are made of plasticfilms. The second side of the using layer overlaps with the first sideof the recited adhesive layer, while the first side of the recited usinglayer has invisible printing patterns or without patterns, and thesecond side of the recited adhesive layer is covered with ions. Theelectrostatic wall sticker can be folded into two halves, in which thesecond side of the adhesive layer is inwardly arranged to overlap eachother, while the first side of the using layer is outwardly arranged.The adhesive layer, while maintaining its adhesiveness and can beaffixed on any smooth surfaces (e.g. fabrics, walls, glass) withoutglue, can be used repeatedly even after multiple removals. The stickersdo not leave any marks on the surface and are highlyenvironmentally-friendly. When not in use, the electrostatic wallstickers can be stored by folding into halves. After folded into halves,the ions on the adhesive layer will not be lost easily and can be keptfor at least 1 year. Such a storage method can save the protectivelayers that are traditionally used for protecting electrostaticsurfaces, thereby staying environmentally-friendly and reducing theproduction costs.

Preferably, for mass production, easy packaging and storage andtransportation, the electrostatic wall stickers are curly shaped, whichcan be rolled around cardboard tubes with the second side of theadhesive layer inwardly arranged and the first side of the using layeroutwardly arranged.

Preferably, for easy write-on and wipe-off on the using layer, the firstside of the recited using surface has an easy-to-erase oil-based film.

Preferably, the recited plastic films are made of PET films, PVC films,YUPO films, PP films, PC films, or PE films.

Preferably, material of the recited adhesive layer has a thickness of0.02 mm-0.5 mm.

Example Two

Use of an electrostatic wall sticker, with the areas of use for therecited electrostatic wall sticker including the beautification of dailyliving, office environments, and teaching situations.

Preferably, the main use of the beautifying daily living environmentsincludes using as poster stickers, decoration stickers, ornamental wallstickers, and photo papers. In both office environments and teachingsituations, the recited electrostatic wall sticker mainly replacestraditional writing boards and blackboards by directly affixing on anyflat surface or the walls for writing purposes.

Preferably, when the recited electrostatic wall stickers are used inoffice or teaching situations, the writing marks on these stickers canbe removed directly and made the stickers ready for repeated use.

When using these electrostatic wall stickers, users may print or writeon the using layer according to different needs. For instance, patternsof personal preferences may be printed on the using layer of thoseornamental wall stickers meant for home decoration. The wall stickersmay also be firmly affixed on the wall as needed and without using glue.Apart from achieving the goal of home decoration, such stickers are alsoeasy to remove and be changed. Likewise, when used in office or teachingsituations, users may simply cut out the desired size and affix theseelectrostatic wall stickers on the walls for writing purposes. Since theuse surface is made of plastic materials like PET film, PVC film, YUPOfilm, PP film, PC film, or PE film, the writing can easily be erased.These electrostatic wall stickers can also be used as photo papers. Thepreferred patterns can be printed through printers or as photo papersfor Polaroid cameras. Photos printed through Polaroid cameras can beaffixed on walls or glass as desired.

Example Three

A process for manufacturing the electrostatic wall sticker, in which theelectrostatic wall sticker comprises the using layer (1) and adhesivelayer (2). The process comprised the following steps:

a. selecting raw materials for manufacturing the using layer andadhesive layer of the electrostatic wall sticker, which material isselected form the group consisting of PET film, PVC film, YUPO film, PPfilm, PC films or PE film;

b. cutting the material selected in Step a into required specificationsby a cutting machine;

c. compositing the raw materials cut by Step b with a compositinginstallation;

d. injecting static electricity onto the voltage onto the reverse sideof the plastic sheet in Step c to create an adhesive layer that carriesstatic electricity by using a DC/direct current corona type iongenerator.

e. using a paper-reeling machine to roll up the electrostatic wallsticker in order to enable packaging.

Preferably, the voltage of the ion generator in Step d was set at3000-3500 volts.

The process further comprises the step of using a paper-reeling machineto roll up the electrostatic wall sticker in order to enable packaging.Preferably, when the electrostatic wall stickers pass through thepaper-reeling machine, the second side of the adhesive layer (2) isinwardly arranged to overlap each other, while the first side of theusing layer (1) is outwardly arranged.

Example Four

A method for storing and transporting for the electrostatic wallsticker, which comprises:

A. Storage and transportation in rolls—by using a paper-reeling machine,the electrostatic wall sticker is rolled on a cardboard tube (3), theadhesive layer (2) is inwardly arranged while the using layer (1) isoutwardly arranged, as shown in FIG. 2;

B. Face-to-face storage and transportation—the recited electrostaticwall stickers are folded into halves, the second side of the adhesivelayer (2) is inwardly arranged to overlap each other, while the firstside of the using layer (1) is outwardly arranged, as shown in FIG. 3,or with the second side of the adhesive layer of two sheets of theelectrostatic wall stickers overlapping each other. By using thisstorage method, the ions on the using layer will not be lost easily andcan be kept for at least 1 year.

The present invention may bring about many beneficial effects in thisfield, for example:

1. The electrostatic wall sticker of the invention can be able toeffectively replace traditional wall stickers by giving strong adhesiveresults on any dry surface without the use of adhesive agents, leavingno marks on the surface after removal, which can maintain thecleanliness while beautifying the environment;

2. The electrostatic wall sticker of the invention can be able to beprinted or written on, which enhances its functionality;

3. Manufacturing of additional protective sticker is not required duringthe production of this product, which reduces the production costs;

4. This electrostatic wall sticker possessing the properties offace-to-face and rolling storage of static electricity, which makestransportation convenient. When not in use, the stickers can be removedfrom the surface and folded into halves for face-to-face adhesion duringstorage. By simply unfolding the sticker, the saved static electricitycan adhere to the surfaces and support instant use in the future, whileprolonging the usage life to the greatest extent possible, the stickersare also easy to store.

5. This electrostatic wall sticker can be widely used in many domains.Apart from the commonly used car logo stickers and cellphone screenprotectors, it can also be used for beautifying daily living, such asposters and ornamental purposes. Likewise, they may also be used inoffices or classrooms to replace traditional writing boards andclassroom blackboards. Users may write directly on the electrostaticwall stickers and erase afterwards.

The aforementioned implementation methods are merely the descriptions onthe preferred implementation methods and have not set out restrictionson the scopes of this invention. In the principle of not deviating fromthe spirit of design for this invention, all the modifications andimprovements made by the skilled in the art must be protected byappended claims for this invention.

What is claimed is:
 1. A storing and transportation method of anelectrostatic wall sticker, in which the electrostatic wall stickercomprises a using layer made of plastic film, which comprises a firstside and a second side, and an adhesive layer made of plastic film,which comprises a first side and a second side, the second side of theusing layer being overlapped and covered on the first side of theadhesive layer, and a plurality of electric ions evenly disposed on thesecond side of the adhesive layer, wherein the method comprisesface-to-face storing and transporting the electrostatic wall sticker i)by folding the electrostatic wall sticker into two halves to form afolded electrostatic wall sticker, wherein the second side of theadhesive layer of each of the two halves are inwardly arranged tooverlap each other, while the first side of the using layer is outwardlyarranged; or ii) by having the second side of the adhesive layer of eachof two sheets of electrostatic wall stickers directly overlapped eachother.
 2. The storing and transportation method of an electrostatic wallsticker of claim 1, wherein the folded electrostatic wall sticker is orthe overlapped electrostatic wall stickers are arranged in rolls on atube or roller.
 3. The storing and transportation method of anelectrostatic wall sticker of claim 1, wherein the folded electrostaticwall sticker is or the overlapped electrostatic wall stickers arearranged in rolls on a tube or roller by making use of a sheet-reelingmachine.
 4. The storing and transportation method of an electrostaticwall sticker of claim 1, wherein the electrostatic wall sticker isformed by the steps of: a. selecting raw materials for manufacturing theusing layer and the adhesive layer of the electrostatic wall sticker; b.cutting the materials selected in Step a into required dimensions; c.compositing the raw materials cut in Step b to form the using layer andthe adhesive layer; d. applying electric charge or the plurality ofelectric ions onto the second side of the adhesive layer formed in Stepc to make the adhesive layer carries static charge.
 5. The storing andtransportation method of an electrostatic wall sticker of claim 4,wherein the raw material is selected from the group consisting of apolyester film, a polyvinyl chloride film, a yupo film, a polypropylenefilm, a polycarbonate film, and/or a polyethylene film.
 6. The storingand transportation method of an electrostatic wall sticker of claim 4,wherein the electric charge is applied with a direct current corona typeion generator.
 7. The storing and transportation method of anelectrostatic wall sticker of claim 6, wherein an operating voltage ofthe ion generator is set at 3000-3500V.
 8. The storing andtransportation method of an electrostatic wall sticker of claim 4,further comprising a step of using a sheet-reeling machine to roll upthe electrostatic wall sticker for packaging.
 9. The storing andtransportation method of an electrostatic wall sticker of claim 8,wherein the second side of the adhesive layer is inwardly arranged,while the first side of the using layer is outwardly arranged when theelectrostatic wall sticker goes through the sheet-reeling machine. 10.The storing and transportation method of an electrostatic wall stickerof claim 1, wherein the folded electrostatic wall sticker is or theoverlapped electrostatic wall stickers are arranged in rolls on acardboard tube.
 11. The storing and transportation method of anelectrostatic wall sticker of claim 1, wherein the folded electrostaticwall sticker is or the overlapped electrostatic wall stickers arearranged in rolls on a cardboard tube by making use of a sheet-reelingmachine.
 12. The storing and transportation method of an electrostaticwall sticker of claim 11, wherein the second side of the adhesive layeris inwardly arranged, while the first side of the using layer isoutwardly arranged when the electrostatic wall sticker goes through thesheet-reeling machine.
 13. The storing and transportation method of anelectrostatic wall sticker of claim 1, further comprising a step ofusing a sheet-reeling machine to roll up the folded electrostatic wallsticker or the overlapped electrostatic wall stickers for packaging.